Exercise keeps astronauts hearts strong enough for flight to Mars

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Published: 2026-09-23T17:30:05.701Z • Permanent link

NASA's latest research has shed new light on the critical issue of maintaining heart health during long-duration spaceflights. A groundbreaking study co-led by Dr. Deepak Bhatt, a renowned cardiologist at UT Southwestern Medical Center, has revealed that intense exercise during space travel can help keep astronauts' hearts strong enough to tolerate the low-gravity environment of Mars. The study, which involved a team of researchers from NASA and UT Southwestern, focused on 12 astronauts who completed a year-long space mission. The data collected during this mission has provided valuable insights into the effects of prolonged weightlessness on the cardiovascular system.

According to the study's findings, the astronauts who engaged in regular exercise experienced a significant improvement in their heart structure and function compared to those who did not. Specifically, the exercise group showed a reduction in left ventricular mass, which is a key indicator of heart health. The researchers also found that the exercise group had a lower risk of cardiovascular events, such as heart attacks and strokes, during the mission. These findings have significant implications for future long-duration space missions, including the planned trip to Mars in the 2030s.

The research team is now working on developing personalized exercise plans for astronauts based on their individual heart health needs. This approach will help ensure that astronauts are well-prepared for the physical demands of space travel and can maintain their heart health even in the low-gravity environment of Mars. Dr. Bhatt's team is also exploring the potential benefits of exercise for other space travelers, including those who will be traveling to the Moon and other destinations in the solar system.

The implications of this research extend far beyond the space community. The study's findings have significant implications for the development of exercise programs for individuals with cardiovascular disease. The researchers' use of wearable devices and other technologies to track astronaut heart health has also raised the bar for the development of similar technologies for use on Earth. Companies such as Fitbit and Garmin are already working on developing wearable devices that can track cardiovascular health, and this research has provided valuable insights into the design and functionality of these devices.

The research also has implications for the development of exercise programs for individuals with high blood pressure, a major risk factor for cardiovascular disease. The study's findings have shown that exercise can have a significant impact on blood pressure, and this has significant implications for the development of exercise programs for individuals with high blood pressure. Research communities and healthcare providers are already taking notice, and there is a growing interest in developing exercise programs that can be tailored to an individual's specific heart health needs.

The research on exercise and heart health in space travel is part of a larger trend in the development of personalized medicine. The use of wearable devices and other technologies to track an individual's health data is becoming increasingly common, and this research has highlighted the potential benefits of these technologies for cardiovascular health. The study's findings have also been influenced by the work of other researchers, including those who have studied the effects of exercise on cardiovascular health in individuals with high blood pressure.